North West Queensland Hybrid Power Project

Project Overview

The NWQHPP is a world-first integrated 50MW solar hybrid baseload power plant. The project combines Vast Solar’s modular tower concentrating solar thermal power (CSP) technology with photovoltaic (PV), battery and gas engine generators to deliver low cost, reliable, clean energy to the Mount Isa region. When completed, the NWQHPP will be the largest hybrid generator and the first utility scale CSP plant built in Australia.

Mount Isa enjoys favourable solar conditions that make it an ideal location for a solar hybrid power plant. Located 10km west of Mount Isa, the NWQHPP power plant will be linked to the North West Power System by a new 220kV high voltage transmission line.

The plant will comprise:

  • Vast Solar’s modular tower CSP technology linked to a 56MW steam turbine via a 14.5 hour molten salt thermal storage system
  • 80MW PV with single axis tracking
  • An integrated 52MW / 15MWh battery energy storage system
  • 57MW of gas-powered reciprocating engines

A master control system will coordinate the dispatch of the generation technologies to ensure constant plant output of 50MW day and night as illustrated and described below:

  • The CSP plant gathers solar energy during the day, stores it as heat in the molten salt tanks, then at night, uses the stored heat to make steam to drive a turbine to generate electricity
  • The PV plant generates electricity during daylight hours
  • The battery is charged with excess PV power which is then deployed to partially mitigate low PV generation during cloudy periods
  • During inclement weather, the gas engines drive generators to ensure customer demand is met.

Project Benefits

  • For energy customers - cheaper energy, low risk power generation, long term certainty on energy prices and elimination of 75% greenhouse gas emissions.
  • For the Mount Isa region - hundreds of direct and indirect jobs leading to growth of the North West Minerals Province
  • For Queensland - $1.6 billion of benefits and high tech manufacturing and engineering jobs.

Project Partners

Vast Solar

Australian company Vast Solar has developed world leading modular tower CSP technology that delivers less risky, less complex, cheaper and more efficient dispatchable renewable electricity generation. 

The core differentiator of Vast Solar’s technology vs. other CSP offerings is its use of liquid sodium as the heat transfer fluid to collect solar energy, unlocking the economic and performance advantages of modular solar arrays. The technology has been refined, tested and proven in three successively larger projects, the latest of which is a world-first 1.1MW grid-connected pilot plant, located near Forbes in NSW that has been successfully and safely operated since early 2018.


Stanwell Corporation is a major provider of electricity to Queensland, the National Electricity Market and large commercial and industrial energy users throughout Australia.

Stanwell owns and operates Stanwell Power Station west of Rockhampton, the Tarong power stations and Meandu Mine near Kingaroy.

Expression of Interest (EOI)

NWQHPP Partners encourage local industry interested in supplying to the project to register an expression of interest (EOI) through the ICN Gateway webpage.

Information on specific supply opportunities will be communicated on the ICN Gateway project page as it becomes available, with local industry able to register its interest against them.

Please ensure that:

  • Your company profile on the ICN Gateway is complete, up-to-date and accurate including electing to be notified via e-mail of supply opportunities
  • You register your interest as a full or partial scope supplier (where applicable), and
  • You respond to all project and work package-specific questions.  

It is important that businesses submitting an EOI are aware that their submission does not guarantee that they will progress further in the procurement process. Only companies that can demonstrate capability and capacity in accordance with the project requirements will be invited to pre-qualify for specific opportunities.

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Project at a glance

QLD Australia
Inviting Registrations
$600 million

Contact Details

Nimmi Pushparajan
Procurement Engineering Specialist
+61 7 3364 0670

Work Package
Full Scope EOI
Partial Scope EOI
Accordian collapse


AccordianPlus EPC Contractor

Full Scope EOI

14 Jun 2021

Partial Scope EOI

Note: The closing date/s for expressions of interest are subject to change.